30334428 has 18 divisors (see below), whose sum is σ = 76678784. Its totient is φ = 10111464.

The previous prime is 30334417. The next prime is 30334433. The reversal of 30334428 is 82443303.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421276 + ... + 421347.

Almost surely, 2^30334428 is an apocalyptic number.

It is an amenable number.

30334428 is an abundant number, since it is smaller than the sum of its proper divisors (46344356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30334428 is a wasteful number, since it uses less digits than its factorization.

30334428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842633 (or 842628 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 30334428 is about 5507.6699247504. The cubic root of 30334428 is about 311.8735927771.

The spelling of 30334428 in words is "thirty million, three hundred thirty-four thousand, four hundred twenty-eight".